Delaware Code
Subchapter I. Definitions and Jurisdiction
§ 2303. Jurisdiction and venue.

(a) The Family Court shall have jurisdiction of proceedings under this chapter to grant, modify and/or terminate guardianship.
(b) A petition for guardianship under this chapter may be filed in the Family Court of any of the following counties:

(1) The county in which at least 1 parent resides;
(2) The county in which the organization having legal or physical care, custody or control of the child is located; or
(3) The county in which the child is located.